University of Kansas Paleontological Institute

04/02/2026

The Paleontological Institute has made available previously published books from our Paleontological Contributions series. You can now find all books written by Daniel Merriam, KU Department of Geology and Kansas Geological Survey historian, and Richard Gentile’s “Rocks and Fossils of the Central United States” on the KU Libraries ScholarWorks site.

03/06/2026

Treatise on Invertebrate Paleontology author, Carrie Schweitzer, has recently published the article “Benchmarking the global biodiversity of decapod crustaceans in the fossil record” which references the Part R, Decapoda revision of the Treatise on Invertebrate Paleontology.

Abstract. An assessment of the biodiversity of decapod crustaceans over geologic time (through 31 December 2024) records 4,225 species, 1,284 genera, and 1

03/03/2026

The Paleontological Institute is pleased to announce the publication of the latest article in Treatise Online: https://journals.ku.edu/treatiseonline.

Schweitzer, C. E., Karasawa, H., & J. Luque. 2026.
Treatise Online no. 196: Part R, Revised, Volume 1:
Evolutionary history of decapod groups: Brachyura (sections Dromiacea, Homoloida, Callichimaeroida, Torynommoida, Etyoida, Raninoida, Dakoticancroida, Cyclodorippoida).
Treatise Online 196:1–39, 8 fig.

https://journals.ku.edu/treatiseonline/article/view/25213

Treatise Online no. 196: Part R, Revised, Volume 1, Evolutionary history of decapod groups: Brachyura (sections Dromiacea, Homoloida, Callichimaeroida, Torynommoida, Etyoida, Raninoida, Dakoticancroida, Cyclodorippoida) Authors Carrie E. Schweitzer Department of Earth Sciences, Kent State University...

02/25/2026

The Paleontological Institute is pleased to announce the addition of our last two published volumes to our online Treatise on Invertebrate Paleontology open access platform.
Both Part B, Prokaryota (2023) and Part V, 2nd Revision, Hemichordata (2023) – as well as all other volumes published since 1953 - are now freely available for download.

https://journals.ku.edu/InvertebratePaleo/issue/archive

For those of you who enjoy the look and feel of hard copy volumes, they can still be purchased through our website:

https://secure.touchnet.net/C21581_ustores/web/store_main.jsp?STOREID=66&clearPreview=true

01/29/2026

The Paleontological Institute is pleased to announce the publication of the latest two articles in Treatise Online: https://journals.ku.edu/treatiseonline.

Treatise Online 194, Part X, A Dictionary of Invertebrate Paleontology: Letter Q, is the first entry in a new addition to the Treatise!

Saether, K. P., Carlson, S. J., Rindsberg, A. K., & L. H. Vallon. 2026.
Treatise Online no. 194: Part X:
A Dictionary of Invertebrate Paleontology: Letter Q
Treatise Online 194:1–32, 3 fig.

https://journals.ku.edu/treatiseonline/article/view/25066

Also

Schweitzer, C. E., & F. R. Schram. 2026.
Treatise Online no. 195: Part R, Revised, Volume 1:
Evolutionary history of decapod groups: origins of decapoda
Treatise Online 195:1–16, 3 fig.

https://journals.ku.edu/treatiseonline/article/view/25067

Paleontological Institute, University of Kansas, Malott Hall1532 Jayhawk Blvd., Room 1023, Lawrence, KS 66045-7594, [email protected] (785) 864-3338

01/28/2026

The Paleo Institute is pleased to announce that Richard Gentile’s Rocks and Fossil of the Central United States is now freely available on the University of Kansas ScholarWorks open access platform. If you live in the Midwest, specifically around the Kansas City area, and want to know about the geological and paleontological history of this area, then this is the book for you. Download it for free right here:

01/14/2026

The Paleontological Institute is pleased to announce the publication of the latest article in Treatise Online: https://journals.ku.edu/treatiseonline.

Feldmann, R. M., D. A. Waugh, R. E. Plotnick, & C. E. Schweitzer. 2026.
Treatise Online no. 193: Part R, Revised, Volume 1:
Structure and taphonomy of decapod cuticle in the fossil record.
Treatise Online 193:1–18, 21 fig.

https://journals.ku.edu/treatiseonline/issue/view/3043

Paleontological Institute, University of Kansas, Malott Hall1532 Jayhawk Blvd., Room 1023, Lawrence, KS 66045-7594, [email protected] (785) 864-3338

12/17/2025

The publication "Rocks and Fossils of the Central United States" has been added to the Paleontological Institute’s Special Publications selections and can be freely downloaded here:
https://hdl.handle.net/1808/36266

11/14/2025

The Paleontological Institute is pleased to announce the publication of the latest article in Treatise Online: https://journals.ku.edu/treatiseonline.

Gorzelak, P., M. A. Salamon, & W. I. Ausich. 2025.
Treatise Online no. 192: Part T, Revised, Volume 1:
Paleoecology and functional morphology of unusual crinoids: stretching the limits of the crinoid Bauplan.
Treatise Online 192:1–36, 20 fig.

https://journals.ku.edu/treatiseonline/article/view/24794

Treatise Online no. 192: Part T, Revised, Volume 1, Paleoecology and functional morphology of unusual crinoids: stretching the limits of the crinoid Bauplan Authors Przemysław Gorzelak Institute of Paleobiology, Polish Academy of Sciences Mariusz A. Salamon Faculty of Natural Sciences, Institute of...

11/04/2025

We have cut the price of our two latest publications of the Treatise on Invertebrate Paleontology by 50%.

Part B, Prokaryota, 2023. Now $25.00.
Part V, Hemichordata, Second Revision, 2023. Now $37.50.

Find these and all other published volumes still in print here:

10/23/2025

The Paleontological Institute is pleased to announce the publication of the latest article in Treatise Online: https://journals.ku.edu/treatiseonline.

Schweitzer, C. E., Feldmann, R. M., Franţescu, O. D., Audo, D., Karasawa, H., Luque, J., Martin, J. W., Pentcheff, N. D., & D. Tshudy. 2025.
Treatise Online no. 191: Part R, Revised, Volume 1:
Illustrated Glossary of the Decapoda.
Treatise Online 191:1–34.

https://journals.ku.edu/treatiseonline/article/view/24702/21942

09/22/2025

The Paleontological Institute is pleased to announce the publication of the latest article in Treatise Online: https://journals.ku.edu/treatiseonline.

Schweitzer, C. E., Feldmann, R. M., Karasawa, H., Luque, J., & F. R. Schram. 2025.
Treatise Online no. 190: Part R, Revised, Volume 1:
Classification and phylogeny of the Decapoda: Introduction to systematics chapters.
Treatise Online 190:1–33, 4 fig.

https://journals.ku.edu/treatiseonline/article/view/24569

An encyclopedia of invertebrate paleontology providing information on morphology, systematics, taxonomy, biogeography, and evolution of invertebrate fossil phyla